package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.SkuImagesEntity;
import com.atguigu.gulimall.product.entity.SpuInfoDescEntity;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.SkuItemSaleAttrVo;
import com.atguigu.gulimall.product.vo.SkuItemVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SkuInfoDao;
import com.atguigu.gulimall.product.entity.SkuInfoEntity;
import org.springframework.util.StringUtils;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    SkuImagesService imagesService;

    @Autowired
    SpuInfoDescService infoDescService;

    @Autowired
    AttrGroupService attrGroupService;

    @Autowired
    ThreadPoolExecutor executor;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                new QueryWrapper<SkuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public void saveSkuInfo(SkuInfoEntity skuInfoEntity) {
        this.save(skuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SkuInfoEntity> queryWrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            queryWrapper.and((wrapper -> {
                wrapper.eq("sku_id", key).or().like("sku_name", key);
            }));
        }


        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId)&&!catelogId.equals("0")) {
            queryWrapper.eq("catalog_id", catelogId);
        }


        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId)&&!brandId.equals("0")) {
            queryWrapper.eq("brand_id", brandId);
        }


        String min = (String) params.get("min");
        String max = (String) params.get("max");
//        if (StringUtils.isEmpty(max)){
//            max=Integer.MAX_VALUE+"";
//        }
//        if (StringUtils.isEmpty(min)){
//            min="0";
//        }
//        if (!StringUtils.isEmpty(min)&&!StringUtils.isEmpty(max)&&!min.equals("0")&&!max.equals("0")){
        queryWrapper.and((wrapper -> {
            wrapper.between("price"
                    , StringUtils.isEmpty(min) ? "0" : min
                    , StringUtils.isEmpty(max) || max.equals("0") ? Integer.MAX_VALUE : max);
        }));
//        }


        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                queryWrapper
        );

        return new PageUtils(page);
    }

    @Override
    public List<SkuInfoEntity> getSkusBySpuId(Long spuId) {

        List<SkuInfoEntity> spu_id = this.list(new QueryWrapper<SkuInfoEntity>().eq("spu_id", spuId));
        return spu_id;
    }

    @Override
    public SkuItemVo info(Long skuId) throws ExecutionException,InterruptedException {

        SkuItemVo skuItemVo = new SkuItemVo();

        CompletableFuture<SkuInfoEntity> infoFuture =CompletableFuture.supplyAsync(()->{
            //1、 sku基本信息获取pms_sku_info
            SkuInfoEntity info = getById(skuId);
            skuItemVo.setInfo(info);
            return info;
        },executor);


        CompletableFuture<Void> saleAttrFuture = infoFuture.thenAcceptAsync((res) -> {
            //3、获取spu的销售属性组合。
            List<SkuItemSaleAttrVo> saleAttrVos = skuSaleAttrValueService.getSaleAttrsBySpuId(res.getSpuId());
            skuItemVo.setSaleAttr(saleAttrVos);
        }, executor);

        CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync((res) -> {
            //4、获取spu的介绍
            SpuInfoDescEntity descEntity = infoDescService.getById(res.getSpuId());
            skuItemVo.setDesp(descEntity);
        }, executor);

        CompletableFuture<Void> baseAttrFuture = infoFuture.thenAcceptAsync((res) -> {
            //5、获取spu的规格参数信息。
            List<SpuItemAttrGroupVo> attrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(res.getSpuId(), res.getCatalogId());
            skuItemVo.setGroupAttrs(attrGroupVos);
        });

        CompletableFuture<Void> imagesFuture = CompletableFuture.runAsync(() -> {
            //2、sku的图片信息一pms_sku_images
            List<SkuImagesEntity> images = imagesService.getImagesBySkuId(skuId);
            skuItemVo.setImages(images);
        }, executor);


        CompletableFuture.allOf(infoFuture,saleAttrFuture,descFuture,baseAttrFuture,imagesFuture).get();

        return skuItemVo;
    }

}